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Finding the Fourth Proportional to 6,894.99, 9,514.94 and 3,910.77

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Solution

The fourth proportional to 6,894.99, 9,514.94 and 3,910.77 is: 5,396.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,894.99 : 9,514.94 = 3,910.77 : x
  2. Step 2: Convert to fraction form
    6,894.99/9,514.94 = 3,910.77/x
  3. Step 3: Cross multiply
    6,894.99x = 9,514.94 × 3,910.77
  4. Step 4: Simplify right side
    6,894.99x = 37,210,722.35
  5. Step 5: Solve for x
    x = 37,210,722.35/6,894.99
  6. Step 6: Final answer
    x = 5,396.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.